Side note (but an important one). It's great that you have the spare, but have you ever tried jacking the X5 up with the factory scissors jack? Do yourself a huge favor and try it this weekend in your driveway. Now imagine doing a tire change with this POS at night, in the rain, on the side of the road. At the VERY minimum you need to carry a 3' by 3' plywood pad. A floor jack would be even better, but who wants to drive around with a missile like that in the back?

Heck, just demounting the wheel can be a challenge when it freezes to the hub. How many of us carry a big enough mallet with us? And jack stands? I would NEVER risk whacking away on a frozen wheel if the X5 was supported by just the factory scissors jack. But how are you going to mount the spare otherwise?

In some respects, RFT's aren't such a bad idea after all.

I would also recommend taking off each wheel and covering your hubs with anti-seize. This will prevent the frozen wheel issue. I do it every season when I swap my winter/summers and I have not had a frozen wheel since my 540 M-sport. Great insurance for 45 min of work. If you are not equipped or have the ability to do this yourself, buy some anti-seize and bring it with you when you get you new tires or when you get you wheels balanced and they can put it on for you